@Kaarme The marrying thing applies both ways. He doesn't see himself as "worthy" for either of them, and he's not crazy enough to marry someone just to show off.
I don't deny his wish to stay out of trouble, but that's not mutually exclusive to what I said. He's got certain values about the concept of helping and protection that he pushes on everyone, some overt, and some subtle enough that only people who look at him when he's not going ham will notice.
He's not doing it to save his reputation. But his reasons for not letting Olivia do the healing are less rational than he excuses it as.